Senior Safety Case Engineer

At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values diversity, and ethical excellence, this is the place where your ambition can thrive.

Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all.

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive and diverse team who always strive to do the right thing for our people, clients and communities.

People are our greatest asset, and we offer a competitive package to retain and attract the best talent.

In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. We also give back to our communities through our Collectively program which incorporates matched-funding, paid volunteering time and charitable donations.

Work-life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part-time and flexible working hours, patterns and locations to suit you and our business.

About the Opportunity

Are you ready to make a real impact in the nuclear industry? Our Safety Case Engineers are at the forefront of groundbreaking projects, both in the UK and on a global stage. From next-generation systems and emerging reactor technologies, like SMRs and AMRs, as well as fusion and non-power reactors.

Joining us means stepping into a rapidly growing market with an organisation that champions diversity and works with a vast range of clients. You'll have the opportunity to shape your career while contributing to some of the most exciting and critical projects in the industry.

We’re excited to hear from professionals with expertise in any of the following areas:

• Safety Case production and management engineering changes, safety reports, periodic safety reviews (PSRs, PCSRs etc).

• Hazard and Risk identification and assessment studies, FMEA, HAZOP, ALARP.

• Fault Studies

• Internal and External Hazard assessments.

• Deterministic Safety Assessments / Arguments (DSA)

• Probabilistic Safety Assessments (PSA) including hazards PSA

• Nuclear Licensing and Authorisations.

• Integrating safety principles into engineering designs.

• Structural Integrity design/assessment of nuclear related structures and components

The Role

The key responsibilities for this role are:

• Delivering high quality technical work to support the demonstration that a facility or system can be operated safely and in compliance with regulatory requirements.

• Writing and reviewing of safety assessments and safety case documents.

• Leading HAZID/HAZOP studies

• Produce and check technical calculations and reports

• Develop clear, logical, and well-structured technical arguments and justifications.

• Liaising with clients to understand their challenges and developing solutions.

• Representing the business in technical meetings with clients, regulators and other third parties.

• Helping to maintain the technical capability/knowledge of the community and mentoring junior team members (as appropriate).

• Sharing of technical best practices across projects.

What You'll Need

• Chartered Member of a professional institute (or equivalent demonstrable experience) or working towards either Chartered or Incorporated Engineer status with a relevant professional body.

• Proven experience in safety case management and/or delivery within an operational and highly regulated environment.

• Knowledge of nuclear plant systems or structures, and associated design and assessment guidelines

• Experience of executing project tasks against relevant standards and best practices.

• Good communication skills and ability to articulate information to a broad range of stakeholders.

Our Culture

Our values are built on a strong foundation of safety, integrity, and respect for every individual. People are at the heart of our mission, and we believe in supporting one another through a culture of care and collaboration. We strive to create a workplace where everyone feels they belong and can thrive. Supporting mental wellbeing and fostering a sense of connection are essential to how we work.

When we embrace different perspectives and work together, we become more innovative, more agile, and more successful.

We partner with VERCIDA, for greater online accessibility, please visit to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.

If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team.